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Python detecting a literal backslash as a line continuation character

How can I stop python seeing "\\" as an invalid line continuation character and start seeing it as a literal backslash? This is a chronic problem but as an example this line of code to move files in a folder to another subfolder :
[rename(I, f"Mainfolder\\InvalidFileStorage\\{ I.rsplit("\\").pop() }") for I in InvalidFiles]
(ps, I am aware that this list comprehension might not be right yet, but I haven't been able to bug test it since I can't run the code without it complaining about line continuation characters)
I am aware from previous instances of this happening that you can typically solve the problem by just moving the code into several lines and using variables to store it, but that would take this simple one liner and make it several times larger and I hate having to constantly do that for otherwise simple code segments.

Your issue comes from the fact that python's f-string parsing is quite weak and can't handle quotes inside expression areas, as they'll break the string:
f"asdf {"a" + "b"} asdf" # not allowed
However, quotes of the opposite type are:
f"asdf {'a' + 'b'} asdf" # fine
Once you fix this issue, it'll error saying that backslashes aren't allowed inside an f-string expression. The easiest way to circumvent this is to just move it to a function:
def process(s):
return s.rsplit("\\").pop()
[rename(I, f"Mainfolder\\InvalidFileStorage\\{ process(I) }") for I in InvalidFiles]

re.escape returns unusable directory

using re.escape() on this directory:
C:\Users\admin\code
Should theoratically return this, right?
C:\\Users\\admin\\code
However, what I actually get is this:
C\:\\Users\\admin\\code
Notice the backslash immediately after C. This makes the string unusable, and trying to use directory.replace('\', '') just bugs out Python because it can't deal with a single backslash string, and treats everything after it as string.
Any ideas?
Update
This was a dumb question :p

No it should not. It's help says "Escape all the characters in pattern except ASCII letters, numbers and '_'"
What you are reporting you are getting is after calling the print function on the resulting string. In console, if you type directory and press enter, it would give something like: C\\:\\\\Users\\\\admin\\\\code. When using directory.replace('\\','') it would replace all backslashes. For example: directory.replace('\\','x') gives Cx:xxUsersxxadminxxcode. What might work in this case is replacing both the backslash and colon with ':' i.e. directory.replace('\\:',':'). This will work.
However, I will suggest doing something else. A neat way to work with Windows directories in Python is to use forward slash. Python and the OS will work out a way to understand your paths with forward slashes. Further, if you aren't using absolute paths, as far as the paths are concerned, your code will be portable to Unix-style OSes.
It also seems to me that you are calling re.escape unnecessarily. If the printing the directory is giving you C:\Users\admin\code then it's a perfectly fine directory to use already. And you don't need to escape it. It's already done. If it wasn't escaped print('C:\Users\admin\code') would give something like C:\Usersdmin\code since \a has special meaning (beep).

Python, not understanding double quotes with nothing inside

got a bit of a noob question.
I'm trying to get Metagoofil working because it keeps saying "error downloading webpage" etc etc.
A google search found that I can change a bit of the code in one of the config files and it will work properly again.
I'm having a problem though: this seems to be the code I want to use.
self.url = url.replace("/url?q=", "", 1).split("&amp")[0]
BUT, it doesn't seem to like me (based on syntax highlighting) have those two quotation marks together with nothing in between. When they are like above, it starts highlighting .split(" up to here thinking that this is the string.
My question is, how can I make the double quotations together without anything in the middle and have it register as its own string, so it doesn't highlight the .split("

The literal "" is a valid string with a length of zero. I guess your syntax highlighter is not working properly.

removing weird double quotes (from excel file) in python string

I'm loading in an excel file to python3 using xlrd. They are basically lines of text in a spreadsheet. On some of these lines are quotation marks. For example, one line can be:
She said, "My name is Jennifer."
When I'm reading them into python and making them into strings, the double quotes are read in as a weird double quote character that looks like a double quote in italics. I'm assuming that somewhere along the way, python read in the character as some foreign character rather than actual double quotes due to some encoding issue or something. So in the above example, if I assign that line as "text", then we'll have something like the following (although not exactly since I don't actually type out the line, so imagine "text" was already assigned beforehand):
text = 'She said, “My name is Jennifer.”'
text[10] == '"'
The second line will spit out a False because it doesn't seem to recognize it as a normal double quote character. I'm working within the Mac terminal if that makes a difference.
My questions are:
1. Is there a way to easily strip these weird double quotes?
2. Is there a way when I read in the file to get python to recognize them as double quotes properly?

I'm assuming that somewhere along the way, python read in the character as some foreign character
Yes; it read that in because that's what the file data actually represents.
rather than actual double quotes due to some encoding issue or something.
There's no issue with the encoding. The actual character is not an "actual double quote".
Is there a way to easily strip these weird double quotes?
You can use the .replace method of strings as you would normally, to either replace them with an "actual double quote" or with nothing.
Is there a way when I read in the file to get python to recognize them as double quotes properly?
If you're looking for them, you can compare them to the character they actually are.
As noted in the comment, they are most likely U+201C LEFT DOUBLE QUOTATION MARK and U+201D RIGHT DOUBLE QUOTATION MARK. They're used so that opening and closing quotes can look different (by curving in different directions), which pretty typography normally does (as opposed to using " which is simply more convenient for programmers). You represent them in Python with a Unicode escape, thus:
text[10] == '\u201c'
You could also have directly asked Python for this info, by asking for text[10] at the Python command line (which would evaluate that and show you the representation), or explicitly in a script with e.g. print(repr(text[10])).

[Python]How to deal with a string ending with one backslash?

I'm getting some content from Twitter API, and I have a little problem, indeed I sometimes get a tweet ending with only one backslash.
More precisely, I'm using simplejson to parse Twitter stream.
How can I escape this backslash ?
From what I have read, such raw string shouldn't exist ...
Even if I add one backslash (with two in fact) I still get an error as I suspected (since I have a odd number of backslashes)
Any idea ?
I can just forget about these tweets too, but I'm still curious about that.
Thanks : )

Prepending the string with r (stands for "raw") will escape all characters inside the string. For example:
print r'\b\n\\'
will output
\b\n\\
Have I understood the question correctly?

I guess you are looking a method similar to stripslashes in PHP. So, here you go:
Python version of PHP's stripslashes

You can try using raw strings by prepending an r (so nothing has to be escaped) to the string or re.escape().
I'm not really sure what you need considering I haven't seen the text of the response. If none of the methods you come up with on your own or get from here work, you may have to forget about those tweets.

Unless you update your question and come back with a real problem, I'm asserting that you don't have an issue except confusion.
You get the string from the Tweeter API, ergo the string does not show up in your code. “Raw strings” exist only in your code, and it is “raw strings” in code that can't end in a backslash.
Consider this:
def some_obscure_api():
"This exists in a library, so you don't know what it does"
return r"hello" + "\\" # addition just for fun
my_string = some_obscure_api()
print(my_string)
See? my_string happily ends in a backslash and your code couldn't care less.